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Employee Benefits - Principal Actuarial Assumptions (Detail)
Dec. 31, 2025
Dec. 31, 2024
Bottom of range [member]    
Disclosure of defined benefit plans [line items]    
Discount rate 0.92% 2.50%
Expected future increase in salaries 1.50% 1.50%
Top of range [member]    
Disclosure of defined benefit plans [line items]    
Discount rate 7.30% 21.55%
Expected future increase in salaries 29.32% 29.32%